when I was told I had high cholesterol my trigs were very high too and my ratio came back at 9.2 which was pretty bad. With the low fat diet you need to be careful that you still keep some healthy fats in your diet because your HDL needs to be higher and if you don't get enough healthy fat in your diet that can go even lower and will just make things worse.

edit: I probably should clarify my chol is now within normal range, the 9.2 ratio was when I first found out my chol was high.